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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 23 — Dec. 1, 2013
  • pp: 4970–4973

Coherent perfect absorption and reflection in slow-light waveguides

Nadav Gutman, Andrey A. Sukhorukov, Y. D. Chong, and C. Martijn de Sterke  »View Author Affiliations


Optics Letters, Vol. 38, Issue 23, pp. 4970-4973 (2013)
http://dx.doi.org/10.1364/OL.38.004970


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Abstract

We identify a family of unusual slow-light modes occurring in lossy multimode grating waveguides, for which either the forward or backward mode components, or both, are degenerate. In the fully degenerate case, the response can be modulated between coherent perfect absorption (zero reflection) and perfect reflection by varying the wave amplitudes in a uniform input waveguide. The perfectly absorbed wave has anomalously short absorption length, scaling as the inverse one-third power of the absorptivity.

© 2013 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(230.7370) Optical devices : Waveguides
(240.6690) Optics at surfaces : Surface waves

ToC Category:
Optics at Surfaces

History
Original Manuscript: September 25, 2013
Manuscript Accepted: October 7, 2013
Published: November 20, 2013

Citation
Nadav Gutman, Andrey A. Sukhorukov, Y. D. Chong, and C. Martijn de Sterke, "Coherent perfect absorption and reflection in slow-light waveguides," Opt. Lett. 38, 4970-4973 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-23-4970

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